Brooks Koepka qualified the golf’s ultimate test and equalled the US Open’s lowest winning score of 16 under to claim his first major at Erin Hills. Koepka emerged as one of the biggest hitters in the game.

On the Finale Round on Sunday, Koepka made six birdies, including three straight on the back nine and bring the longest U.S. Open venue to its knees.

Koepka’s 16-under total tied Rory McIlroy’s record (2011, Congressional) for lowest score in relation to par at a U.S. Open. He is the seventh consecutive first-time major winner.

On Sunday, Koepka started with one stroke behind 54-hole leader Brian Harman, but fired a 5-under-par 67 – his third sub-70 round of the championship – to produce a four-stroke victory over Harman and world No. 4 Hideki Matsuyama, of Japan.

England’s Tommy Fleetwood, shot a level-par 72 to end fourth on 11 under. The 26-year-old from Southport, playing in his second US Open, was unable to keep pace with playing partner Koepka on the front nine.

The duo started Sunday’s final round one off the lead but Koepka holed three birdies in his first eight holes, while Fleetwood followed a birdie on the second with three bogeys in his next six holes for a five-shot swing.

Koepka’s 72-hole total of 16-under 272 was four strokes shy of the championship record registered by Rory McIlroy in 2011 at par-71 Congressional Country Club in Bethesda, Md., and it tied the Northern Irishman’s mark in relation to par. He also became the seventh consecutive first-time major champion and the third American in a row to win the U.S. Open, the first time that’s happened since 2000 when Tiger Woods followed Payne Stewart and Lee Janzen.

Koepka’s four-stroke victory is the largest in the last nine majors, dating to 2015 U.S. Open champion Jordan Spieth’s four-stroke win in the 2015 Masters.